Patents by Inventor Masayuki Takemura

Masayuki Takemura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11024051
    Abstract: The purpose of the present invention is to provide an object detection device which is capable of accurately estimating the height of a road surface and is capable of reliably detecting an object present on the road surface.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 1, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Felipe Gomezcaballero, Masayuki Takemura, Shinichi Nonaka
  • Publication number: 20200349366
    Abstract: The purpose of the present invention is to provide an onboard environment recognition device exhibiting high accuracy of measurement in a wider range of view fields. The present invention pertains to an onboard environment recognition device (1) that utilizes two cameras (100, 110) for sensing, wherein the onboard environment recognition device (1) is characterized in that: two camera view fields include a stereo-vision area and a monocular-vision area; and the device laterally searches for parallax images that are output results of the stereo-vision area, estimates a road surface distance in the stereo-vision area, and measures the distance of the monocular-vision area by using the estimated road surface distance after extending the same to the monocular-vision area in the lateral direction.
    Type: Application
    Filed: December 4, 2018
    Publication date: November 5, 2020
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Masayuki TAKEMURA, Shouji MURAMATSU, Felipe GOMEZCABALLERO, Takeshi SHIMA
  • Patent number: 10796167
    Abstract: Provided is a periphery recognition device that makes it possible to: minimize the load from object recognition processing for recognizing an object moving between one region covered by a long-distance sensor and/or a wide-angle short-distance sensor to another such region; the periphery recognition device being able to reduce the proportion of non-recognition or erroneous recognition of objects moving from a region covered by the long-distance sensor or the wide-angle short-distance sensor to a boundary region.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: October 6, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Felipe Gomezcaballero, Masayuki Takemura, Takeshi Nagasaki, Shouji Muramatsu
  • Patent number: 10685449
    Abstract: The purpose of the present invention is to provide a surrounding environment recognition device such that even in a situation where a certain moving three-dimensional object is apparently overlapped with another three-dimensional object, early detection of the certain moving three-dimensional object is enabled. To this end, a surrounding environment recognition device for a moving body is equipped with: imaging units for photographing multiple images in a time series; a three-dimensional object detection unit for detecting three-dimensional objects on the basis of distances of the objects from the imaging units; a vector detection unit for tracking feature points within predetermined areas of the multiple images containing the three-dimensional objects, thereby detecting motion vectors of the feature points; and a moving three-dimensional object detection unit for detecting three-dimensional objects which are present in the areas on the basis of detection results of the vector detection unit.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: June 16, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masayuki Takemura, Takeshi Shima, Takeshi Nagasaki
  • Patent number: 10636130
    Abstract: An image processing device processes an image captured by at least one image-capturing device including a lens which has characteristics of including an inflection point of a change rate of an incidence angle per image height with respect to the incidence angle at a predetermined inflection point incidence angle. The image processing device includes a resolution adjustment unit that adjusts resolution of an inflection point correspondence image area corresponding to the predetermined inflection point incidence angle and resolution of at least one of an inside image area positioned more inside than the inflection point correspondence image area and an outside image area positioned outside of the inflection point correspondence image area.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: April 28, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Haruki Matono, Takeshi Nagasaki, Toshiyuki Aoki, Seiji Murata, Masayuki Takemura, Keiichi Betsui
  • Patent number: 10627228
    Abstract: The purpose of the present invention is to provide an object detection device conducive to carrying out control in an appropriate manner according to the surrounding environment, with consideration to the accuracy of locations of detected objects. The device is characterized by being provided with: a parallax information generation unit for generating parallax information from a plurality of parallax images acquired from a plurality of imaging units; an object detection unit for detecting objects contained in the parallax images; a location information generation unit for generating location information about the objects, on the basis of the parallax information; and a location accuracy information generation unit for generating location accuracy information pertaining to the accuracy of the location information, on the basis of the condition of generation of the parallax information.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 21, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki Takemura, Takuma Osato, Takeshi Shima, Yuji Otsuka
  • Patent number: 10625675
    Abstract: A lane departure judgment apparatus is configured to detect a lane-dividing line based on image information output from an image-capturing device that acquires an image of an area outside a vehicle, and to judge whether or not departure of the vehicle from the lane-dividing line occurs based on a distance between the vehicle and the lane-dividing line, wherein when an angle of the vehicle with respect to the lane-dividing line thus detected is constant, the distance between the vehicle and the lane-dividing line to be used to judge whether or not departure of the vehicle occurs is changed according to whether the vehicle is being driven on a road having a lane-dividing width that is greater than a predetermined width or on a road having a lane-dividing width that is smaller than a predetermined width.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: April 21, 2020
    Assignee: Clarion Co., Ltd.
    Inventors: Masato Imai, Masayuki Takemura, Shoji Muramatsu
  • Patent number: 10509973
    Abstract: An onboard environment recognition device is obtained with which it is possible to improve recognition performance within the headlight illumination range and outside the headlight illumination range of a vehicle with an onboard camera. This onboard environment recognition device has: an imaging unit 100 for imaging, using a camera installed in the vehicle, at a wider-angle range than the headlight illumination range; an in-illumination/out-of-illumination exposure adjustment unit for setting appropriate exposure conditions separately within the headlight illumination range and outside the headlight illumination range; and a recognition unit 500 for recognizing images on the basis of the acquired images. Therefore, it is possible to maintain high recognition performance in the boundary regions of the headlight illumination range, and outside the range, and the present invention can also be used for wide-angle sensing at night.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: December 17, 2019
    Assignee: HITACHI AUTOMOTIVE SYTEMS, LTD.
    Inventors: Masayuki Takemura, Takeshi Nagasaki, Felipe Gomezcaballero, Takeshi Shima
  • Publication number: 20190266745
    Abstract: The purpose of the present invention is to provide an object detection device which is capable of accurately estimating the height of a road surface and is capable of reliably detecting an object present on the road surface.
    Type: Application
    Filed: December 7, 2017
    Publication date: August 29, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Felipe GOMEZCABALLERO, Masayuki TAKEMURA, Shinichi NONAKA
  • Patent number: 10360436
    Abstract: Provided is an object detection device capable of reliably recognizing a vehicle. This object detection device detects multiple three-dimensional objects from a left image and a right image captured with a left imaging unit and a right imaging unit (S103), extracts, as combination candidates from among the multiple three-dimensional objects, two three-dimensional objects which exist with an interval to the left/right, and determines whether a sparse parallax region, which is a region having a smaller parallax density than left/right regions, exists in an intermediate region between the two three-dimensional objects extracted as combination candidates.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: July 23, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takuma Osato, Masayuki Takemura, Yuji Otsuka, Takeshi Nagasaki
  • Patent number: 10246038
    Abstract: The present invention addresses the problem of attaining an object recognition device that can change control of a vehicle in accordance with the reliability of detection of a target object. The object recognition device according to the present invention recognizes a target object around a vehicle and includes: a distance-information-based target object determination unit 106 that determines whether or not an object 303 is a target object by using distance information from the vehicle 301 to the object 303; an image-information-based target object determination unit 107 that determines whether or not the object 303 is a target object by using image information obtained by capturing an image of the object 303 from the vehicle 301; and a target object detection reliability calculation unit 108 that calculates the reliability of detection of a target object by using the distance information and the image information.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 2, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takeshi Shima, Takuma Osato, Masayuki Takemura, Yuuji Otsuka
  • Publication number: 20180357772
    Abstract: The purpose of the present invention is to provide a surrounding environment recognition device such that even in a situation where a certain moving three-dimensional object is apparently overlapped with another three-dimensional object, early detection of the certain moving three-dimensional object is enabled. To this end, a surrounding environment recognition device for a moving body is equipped with: imaging units for photographing multiple images in a time series; a three-dimensional object detection unit for detecting three-dimensional objects on the basis of distances of the objects from the imaging units; a vector detection unit for tracking feature points within predetermined areas of the multiple images containing the three-dimensional objects, thereby detecting motion vectors of the feature points; and a moving three-dimensional object detection unit for detecting three-dimensional objects which are present in the areas on the basis of detection results of the vector detection unit.
    Type: Application
    Filed: January 12, 2017
    Publication date: December 13, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki TAKEMURA, Takeshi SHIMA, Takeshi NAGASAKI
  • Patent number: 10095934
    Abstract: An in-vehicle device includes: an image acquisition unit that obtains a captured image from a camera that captures, via a camera lens, an image of a surrounding environment around a vehicle; an accumulation detection unit that individually detects a plurality of types of accumulation settled at the camera lens based upon the captured image; an image recognition unit that recognizes an object image, expressing a specific object present in the surrounding environment, in the captured image; a detection results integrating unit that calculates integrated detection results by integrating a plurality of sets of detection results based upon various sets of detection results pertaining to detection of the plurality of types of accumulation provided by the accumulation detection unit; and an operation control unit that controls operation executed by the image recognition unit based upon the integrated detection results.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: October 9, 2018
    Assignee: Clarion Co., Ltd.
    Inventors: Masayuki Takemura, Masahiro Kiyohara, Shoji Muramatsu, Kota Irie, Yasuhiro Akiyama
  • Patent number: 10096124
    Abstract: A water droplet detection device has an image capturing unit and a water droplet detection unit. The image capturing unit has a photographic optical system that an area captures an image of a predetermined area. The water droplet detection unit sets an arbitrary attention point in the captured image, a plurality of first reference points inside an imaginary circle of a predetermined radius having the attention point as a center the imaginary circle, and a plurality of second reference points corresponding to the first reference points outside the imaginary circle. The water droplet detection unit detects edge information between the first reference points and second reference points, and assesses a circularity strength of the edge information to detect a water droplet attached to the photographic optical system. The water droplet detection device can be used with an image conversion unit to form a three-dimensional object detection device.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 9, 2018
    Assignees: Nissan Motor Co., Ltd., Clarion Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Osamu Fukata, Masayuki Takemura, Akira Utagawa, Shoji Muramatsu, Kota Irie
  • Publication number: 20180197020
    Abstract: Provided is a periphery recognition device that makes it possible to: minimize the load from object recognition processing for recognizing an object moving between one region covered by a long-distance sensor and/or a wide-angle short-distance sensor to another such region; the periphery recognition device being able to reduce the proportion of non-recognition or erroneous recognition of objects moving from a region covered by the long-distance sensor or the wide-angle short-distance sensor to a boundary region.
    Type: Application
    Filed: August 5, 2016
    Publication date: July 12, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Felipe GOMEZCABALLERO, Masayuki TAKEMURA, Takeshi NAGASAKI, Shouji MURAMATSU
  • Publication number: 20180150949
    Abstract: An image processing device processes an image captured by at least one image-capturing device including a lens which has characteristics of including an inflection point of a change rate of an incidence angle per image height with respect to the incidence angle at a predetermined inflection point incidence angle. The image processing device includes a resolution adjustment unit that adjusts resolution of an inflection point correspondence image area corresponding to the predetermined inflection point incidence angle and resolution of at least one of an inside image area positioned more inside than the inflection point correspondence image area and an outside image area positioned outside of the inflection point correspondence image area.
    Type: Application
    Filed: April 13, 2016
    Publication date: May 31, 2018
    Inventors: Haruki MATONO, Takeshi NAGASAKI, Toshiyuki AOKI, Seiji MURATA, Masayuki TAKEMURA, Keiichi BETSUI
  • Publication number: 20180137339
    Abstract: Provided is an object detection device capable of reliably recognizing a vehicle. This object detection device detects multiple three-dimensional objects from a left image and a right image captured with a left imaging unit and a right imaging unit (S103), extracts, as combination candidates from among the multiple three-dimensional objects, two three-dimensional objects which exist with an interval to the left/right, and determines whether a sparse parallax region, which is a region having a smaller parallax density than left/right regions, exists in an intermediate region between the two three-dimensional objects extracted as combination candidates.
    Type: Application
    Filed: June 15, 2016
    Publication date: May 17, 2018
    Inventors: Takuma OSATO, Masayuki TAKEMURA, Yuji OTSUKA, Takeshi NAGASAKI
  • Publication number: 20180137375
    Abstract: An onboard environment recognition device is obtained with which it is possible to improve recognition performance within the headlight illumination range and outside the headlight illumination range of a vehicle with an onboard camera. This onboard environment recognition device has: an imaging unit 100 for imaging, using a camera installed in the vehicle, at a wider-angle range than the headlight illumination range; an in-illumination/out-of-illumination exposure adjustment unit for setting appropriate exposure conditions separately within the headlight illumination range and outside the headlight illumination range; and a recognition unit 500 for recognizing images on the basis of the acquired images. Therefore, it is possible to maintain high recognition performance in the boundary regions of the headlight illumination range, and outside the range, and the present invention can also be used for wide-angle sensing at night.
    Type: Application
    Filed: July 1, 2016
    Publication date: May 17, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki TAKEMURA, Takeshi NAGASAKI, Felipe GOMEZCABALLERO, Takeshi SHIMA
  • Patent number: 9965690
    Abstract: An on-vehicle control device includes: an image acquiring unit that acquires a captured image from an image-capturing device, the image-capturing device capturing an image of surroundings of a vehicle; a judged range dividing unit that divides a predetermined judged range of an image-capturing range of the image-capturing device into a plurality of regions; a feature point extracting unit that extracts a feature point having predetermined characteristics in the surroundings of the vehicle from the image acquired by the image acquiring unit; a point accumulating unit that accumulate points for a region where there is the feature point extracted by the feature point extracting unit, among the plurality of regions, for a plurality of images acquired by the image acquiring unit in time series; and a judging unit that judges whether a foreign matter is adhered to the image-capturing device based on scores resulting from accumulating points of the plurality of regions.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: May 8, 2018
    Assignee: Clarion Co., Ltd.
    Inventors: Masayuki Takemura, Takehito Ogata, Satoshi Ito
  • Patent number: 9956941
    Abstract: An on-board device, that outputs a control signal to a cleaning control unit that controls accumulation removing units used to remove accumulations settled on a photographic lens in an on-board camera by adopting a plurality of methods, includes: an accumulation detection unit that detects an accumulation settled on the photographic lens from a photographic image output from the on-board camera when a vehicle speed input thereto is equal to or higher than a predetermined vehicle speed; a selection unit that selects an accumulation removing unit adopting a first method among the accumulation removing units adopting the plurality of methods; and a removal decision unit that makes a decision, based upon the photographic image, as to whether or not the accumulation has been removed from the photographic lens through a removal operation performed by the accumulation removing unit adopting the first method, which has been selected by the selection unit, wherein: if the removal decision unit decides that the accumul
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 1, 2018
    Assignees: Clarion Co., Ltd., Nissan Motor Co., Ltd.
    Inventors: Masahiro Kiyohara, Kota Irie, Katsuyuki Nakamura, Shoji Muramatsu, Masayuki Takemura, Osamu Fukata, Yasuhisa Hayakawa